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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5940

Title: Quantum interference with angle-dependent partial frequency redistribution: solution of the polarized line transfer in the non-magnetic case
Authors: Supriya, H. D
Smitha, H. N
Nagendra, K. N
Ravindra, B
Sampoorna, M
Keywords: Line: formation
Polarization
Radiative transfer
Scattering
Methods: numerical
Sun: atmosphere
Issue Date: 11-Feb-2013
Publisher: Oxford University Press on behalf of the Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, Vol. 429, no. 1, pp. 275-280
Abstract: Angle-dependent partial frequency redistribution (PRD) matrices represent the physical redistribution in the process of light scattering on atoms. For the purpose of numerical simplicity, it is a common practice in astrophysical literature to use the angle-averaged versions of these matrices, in the line transfer computations. The aim of this paper is to study the combined effects of angle-dependent PRD and the quantum interference phenomena arising either between the fine structure (J) states of a two-term atom or between the hyperfine structure (F) states of a two-level atom. We restrict our attention to the case of non-magnetic and collisionless line scattering on atoms. A rapid method of solution based on Neumann series expansion is developed to solve the angle-dependent PRD problem including quantum interference in an atomic system. We discuss the differences that occur in the Stokes profiles when angle-dependent PRD mechanism is taken into account.
Description: Restricted Access
URI: http://hdl.handle.net/2248/5940
ISSN: 1365-2966
Alternative Location: http://dx.doi.org/10.1093/mnras/sts335
http://mnras.oxfordjournals.org/content/early/2012/12/03/mnras.sts335
Copyright: © Royal Astronomical Society
Appears in Collections:IIAP Publications

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